United States. Department of the Treasury. "Bases of Tables,"
in
United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances for the Fiscal Year Ended June 30, 1963,"
Annual Report of the Secretary of the Treasury on the State of the Finances
(Fiscal Year Ended June 30, 1963)
: 455-456.
https://fraser.stlouisfed.org/title/194/item/5455/toc/254847
, accessed on January 21, 2019.